Serving Nemotron 3 Ultra with vLLM
Nemotron 3 Ultra has 550 billion parameters. vLLM targets production serving, throughput and concurrency. This page gives the memory required and the platforms that qualify.
What is the minimum memory?
Nemotron 3 Ultra totals 550 billion parameters. In NVFP4 its weights take about 316 GB including the runtime margin. In FP8 the footprint doubles, to about 632 GB. The attention cache sits on top and depends on the context served.
What is vLLM for?
vLLM targets production serving, throughput and concurrency. See the vLLM and Nemotron 3 Ultra fact sheets.
On which platforms?
- Nemotron 3 Ultra on Mac Studio Ultra
- Nemotron 3 Ultra on DGX Station
- Nemotron 3 Ultra on RTX PRO 6000 server
- Nemotron 3 Ultra on H200 SXM server
- Nemotron 3 Ultra on B200 SXM
- Nemotron 3 Ultra on B300 SXM
How much memory for Nemotron 3 Ultra with vLLM?
About 316 GB in NVFP4 for the weights, excluding the attention cache.
Does vLLM suit Nemotron 3 Ultra?
vLLM serves Nemotron 3 Ultra as soon as the machine offers at least 316 GB of memory, the weight footprint in NVFP4. 7 of the 8 platforms in the catalogue meet that bar.
Method
Parameter counts and memory figures come from the site fact sheets. Memory footprints are calculated, not measured: a reading on real hardware may differ depending on the engine and the exact weight format. Prices are indicative and not contractual.